 | Home > Td5 > Running rough after a remap. |
 
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25   
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Hello all, usually more a reader than writer, you guys seem to have most things covered before I can hit the keyboard.
Does anyone else experience rough running and grey smoke from exhaust following a remap? I had my TD5 remapped last year and it’s taken a while to realize exactly when it happens, and look at possibilities such as injectors and injector harness. It starts and runs fine from cold up to full temperature, performance is much better when I want to use it. But, when restarted after engine temperature has fallen into the blue band on the temperature gauge it runs rough, similar to a cylinder not firing, and gives out a fair amount of grey smoke. As soon as temperature is above the blue band it will run fine and stop smoking. Annoying when doing short stop start trips. Does the mapping relate to engine temperature other than cold start? Is there a switch point set by the temperature? Does it happen on Puma remaps? Thanks, Bob. Series 3 88" Pick Up. Now gone. Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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28th May 2014 2:38pm |
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| Dave-H Member Since: 08 Feb 2011 Location: Surrey Posts: 1507 
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Can't see it being connected to a re-map.
Could be a head gasket?? [among various other possibilities] Who did the re-map last year? As you're in Bromsgrove, You could do yourself a favour and take to a renown specialist .. IRB Developments, link below  Guns and Landrovers .... anything else is irrelevant. |
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28th May 2014 3:13pm |
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25
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Thanks Dave-H, hadn’t thought about head gasket, oil and water levels all stay OK.
Starts and runs up to temp no problem, just when restarting after the engine has cooled down but not fully cold. Any clues on checking if head gasket? Series 3 88" Pick Up. Now gone. Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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28th May 2014 4:15pm |
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25
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Sorry for late reply, air flow meter was replaced about a year ago with a genuine LR one, but I'll get it checked.
Thanks, Bob Series 3 88" Pick Up. Now gone. Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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30th May 2014 9:42am |
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| derbywill Member Since: 25 Mar 2010 Location: Derbyshire Posts: 539 
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Could it be they injector o rings and washers? Just a thought.
Will 2005 90 XS 1954 86'' Series 1 tilt |
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30th May 2014 10:19am |
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| praetorian Member Since: 01 Jul 2014 Location: Newcastle Posts: 6 
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Who did the map? Bad maps can cause all manner of issues. Either way why don't you ask the tuner?
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1st Jul 2014 10:19pm |
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25
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Been elusive to contact, doesn’t return calls etc. It’s been a while since it was done and I’ve been living with it. I think the fueling at low but not cold temperatures is not correct and 1 or 2 cylinders are not firing until engine has warmed up a bit more. Or maybe heater plugs, I intend to check those at the weekend. I probably need to get it sorted by BAS or Alive, it just that they are quite a way from where I live. It seems that no one else has had this problem so I guess it’s a one off. Series 3 88" Pick Up. Now gone.
Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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2nd Jul 2014 1:33pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6037 
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If you can get hold of someone with a nanocom or similar, then copy your existing tune (unless it's been locked), then upload a standard tune (nanocom software can create all the factory tunes), and see if the problem goes away.
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2nd Jul 2014 1:58pm |
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610 
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As elusive as you may be to perhaps reveal who did the map can one assume it wasn't by one of the reputable suppliers?
I used to have an Autologic map that eventually due to gremlins and further upgrades of vehicle began to give my truck running issues. Rather than try to make a silk purse out of a sow's ear you may well have to bite the bullet, bin it and get a decent one. I had to in the end. Alternatively 'How does it run if you revert it back to standard?' would be my next question? That way you can determine if it is indeed a map issue. If you go through life with your head in the sand....all people will see is an ar5e!! Treat every day as if it is your last....one day you will be right!! |
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2nd Jul 2014 2:07pm |
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| praetorian Member Since: 01 Jul 2014 Location: Newcastle Posts: 6
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I have a good idea who you're talking about. Can you not send pete your ecu to get it fixed, I know he does this regularly for oversea customers.
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2nd Jul 2014 4:27pm |
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25
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Thanks for the advice guys, I like the suggestion of getting a standard map back in to try, just got to find someone who has a Nanocom. Just tried the glow plugs with a cold engine, not showing any current on a clamp ammeter on 3 of the 4 I could get to. Took the relay out that seems all OK.
Is there a temperature above which the glow plugs are not turned on by the ecu? Thanks again. Series 3 88" Pick Up. Now gone. Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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2nd Jul 2014 9:53pm |
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| achuakh Member Since: 12 Apr 2012 Location: Singapore Posts: 157  
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you should be able to hear the glow plug relay. even in hot weather like over 30 deg C, the glow plugs are still energised as i can hear the relay click to turn off like after 7 seconds.
the glow plug lamp and the glow plug relay do not seem to tally. so after the lamp goes out, it's a few more seconds before the relay clicks. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island. |
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3rd Jul 2014 2:38pm |
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| BobbyO Member Since: 10 Feb 2011 Location: Bromsgrove Posts: 25
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Ian (Porny) at IRB kindly offered to copy in the standard map, and removed and checked the glow plugs while I was there – all OK. Next morning still rough and smoking until warmed up a bit. So its not the remap then, just coincidence it started around the same time. Ian thought the turbo may be a bit ‘sticky’ and not running up until warmed up some. So, more checking to do. Series 3 88" Pick Up. Now gone.
Defender 90 Td5 Hard Top Freelander 2 Range Rover Sport 3.0 |
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6th Jul 2014 6:12pm |
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| adseybear Member Since: 08 Oct 2009 Location: Vancouver, Canada Posts: 260 
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Interested in any resolution here as mine seems rough when cold now. 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration 2019 Jeep Wrangler JL Rubicon - SOLD 2006 Volvo V70 D5 - Ocean Race Edition, SOLD 2003 VW Passat Estate 1.9TDI - SOLD 2008 BMW 320D M Sport Estate - SOLD 2001 Defender 90 Td5 Hard Top - SOLD |
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14th Jul 2014 6:44pm |
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